Carbon monoxide detector



FIG. 1 is a perspective view of the carbon monoxide detector;

FIG. 2 is a top plan view of the carbon monoxide detector;

FIG. 3 is a front plan view of the carbon monoxide detector;

FIG. 4 is a back plan view of the carbon monoxide detector;

FIG. 5 is an end plan view of the carbon monoxide detector;

FIG. 6 is another end plan view of the carbon monoxide detector; and,

FIG. 7 is a bottom plan view of the carbon monoxide detector. 

The ornamental design for a carbon monoxide detector, as shown and described. 